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  1. CernVM
  2. CVM-1909

Make overlayfs the default union fs

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Details

    • Improvement
    • Status: Closed
    • Medium
    • Resolution: Completed
    • None
    • CernVM-FS 2.8
    • CVMFS
    • None
    • ANY

    Description

      When both aufs and overlayfs are available (e.g. Ubuntu 20), cvmfs picks aufs as a default. It's time to switch the default to overlayfs.

      The hardlink treatment should be also adjusted in:

      • cvmfs_server_import.sh and cvmfs_server_import.sh: The warning "Warning: CernVM-FS filesystems using overlayfs may not enforce hard link semantics during publishing" is no longer needed for overlayfs.
      • sync_mediator.cc: We do not need to break hardlinks.
      • cvmfs_server_migrate.sh: CVMFS_IGNORE_XDIR_HARDLINKS should be set to true by default.

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            avalenzu Andrea Valenzuela Ramirez (Inactive)
            jblomer Jakob Blomer
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            Dates

              Created:
              Updated:
              Resolved: